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OAuth

Work through each question. Reveal the answer when you're ready to check.

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Q1Hardoauthauthorizationdistributed-systems

Why was OAuth introduced instead of sharing user passwords with third-party applications?

Q2Hardoauth-access-tokenapi-securityauthorization

Why are OAuth access tokens preferred over long-lived credentials in API systems?

Q3Hardoauth-scopesauthorizationapi-design

Why are OAuth scopes important in secure API design?

Q4Hardoauth-refresh-tokentoken-managementsecurity

Why are refresh tokens separated from OAuth access tokens?

Q5Hardoauth-authorization-code-flowbackend-securityauthentication

Why is the Authorization Code Flow considered more secure than the Implicit Flow?

Q6Hardpkceoauth-securitymobile-apps

Why is PKCE important for OAuth flows in mobile and public clients?

Q7Hardoauthmicroservicesdistributed-authentication

Why is OAuth widely adopted in microservices and distributed architectures?

Q8Hardoauth-vs-jwtauthenticationauthorization

Why is OAuth not the same thing as JWT authentication?

Q9Hardoauth-revocationdistributed-systemstoken-management

Why is OAuth token revocation difficult in distributed systems?

Q10Hardoauthsecuritytrade-offs

What are the major trade-offs when designing OAuth-based authentication systems?